Funnel component and packaging container using funnel component

Abstract

A funnel component, and a packaging container using the funnel component are provided. A funnel component includes: a funnel portion having a diameter that is increased from a narrow opening side toward a wide opening side; a discharge portion that connects with an end portion on the narrow opening side; and a side wall portion that surrounds an opening portion, on the wide opening side, of the funnel portion, connects with the funnel portion, and is fitted into the container body. The funnel component is integrally formed by a sheet member including paper and sealant layer. A folded portion is formed, by the sheet member being folded back and welded over entire circumference, at an opening portion of the discharge portion. The packaging container is formed by the funnel component being fitted into a container body having an open end, a bottom portion, and a side wall.

The invention claimed is: 
     
       1. A packaging container, comprising:
 a cylindrical container body having an open end, a bottom portion, and a side wall; 
 a funnel component fitted into the container body such that a narrow opening side portion is directed toward an open end side of the container body, the funnel component comprising:
 a funnel portion having a diameter that is increased from a narrow opening side toward a wide opening side, 
 a tubular discharge portion that connects with an end portion on the narrow opening side, and 
 a cylindrical side wall portion that surrounds an opening portion, on the wide opening side, of the funnel portion, connects with the funnel portion, and is fitted into the container body, wherein 
 the funnel portion, the discharge portion, and the side wall portion are integrally formed by using a sheet member including paper and a sealant layer, and 
 a folded portion formed by the sheet member being folded back and welded over an entire circumference is provided at an opening portion of the discharge portion; and 
 
 a sealing lid that seals the open end of the container body, includes perforation lines, and is cut by an external pressing force, the sealing lid including
 a lower film that has a circumferential edge portion which is sealed to an opening portion of the container body to seal the container body, that has the perforation lines which are provided in a center portion other than the circumferential edge portion so as to radially extend, and that is to be cut by being externally pressed, and 
 an upper film that covers the perforation lines of the lower film, and is adhered to a surface of the lower film over the entire circumference of the circumferential edge portion of the lower film and in at least one adhesion region that is partially formed in a region which does not include the perforation lines of the center portion, such that the upper film is separable from the lower film, 
 wherein the surface of the lower film has a non-adhered annular region that is underlying the upper film but is not adhered to the upper film at any portion of the non-adhered annular region, the non-adhered annular region being inside the circumferential edge portion and surrounding the perforation lines. 
 
 
     
     
       2. The packaging container according to  claim 1 , wherein
 the funnel portion includes a first tapered portion on the wide opening side, and a second tapered portion that is closer to the narrow opening side than the first tapered portion is, and 
 a taper angle of the second tapered portion is greater than a taper angle of the first tapered portion. 
 
     
     
       3. The packaging container according to  claim 1 , wherein the folded portion of the sheet member has a corrugated edge. 
     
     
       4. The packaging container according to  claim 1 , wherein an opening portion, on the narrow opening side, of the funnel component projects from a plane of the container body including the open end of the container body, and a projecting distance is greater than 0 mm and less than or equal to 2 mm. 
     
     
       5. The packaging container according to  claim 1 , wherein adhesion portions are formed in regions each of which is between the perforation lines, and is not on the perforation lines formed on the sealing lid, and, at the adhesion portions, the opening portion, on the narrow opening side, of the funnel portion is partially adhered to the sealing lid. 
     
     
       6. The packaging container according to  claim 1 , wherein the adhesion region for the sealing lid includes a plurality of circular regions that are point-symmetric with respect to a center meeting portion of the perforation lines. 
     
     
       7. A packaging container comprising:
 a cylindrical container body having an open end, a bottom portion, and a side wall; 
 a funnel component fitted into the container body such that a narrow opening side portion is directed toward an open end side of the container body, the funnel component comprising:
 a funnel portion having a diameter that is increased from a narrow opening side toward a wide opening side, 
 a tubular discharge portion that connects with an end portion on the narrow opening side, and 
 a cylindrical side wall portion that surrounds an opening portion, on the wide opening side, of the funnel portion, connects with the funnel portion, and is fitted into the container body, wherein 
 the funnel portion, the discharge portion, and the side wall portion are integrally formed by using a sheet member including paper and a sealant layer, and 
 a folded portion formed by the sheet member being folded back and welded over an entire circumference is provided at an opening portion of the discharge portion; and 
 
 a sealing lid that seals the open end of the container body, includes perforation lines, and is cut by an external pressing force, the sealing lid including
 a lower film that has a circumferential edge portion which is sealed to an opening portion of the container body to seal the container body, that has the perforation lines which are provided in a center portion other than the circumferential edge portion so as to radially extend, and that is to be cut by being externally pressed, and 
 an upper film that covers the perforation lines of the lower film, and is adhered to a surface of the lower film over the entire circumference of the circumferential edge portion of the lower film and in at least one adhesion region that is formed in at least a portion of a region which includes the perforation lines of the center portion, such that the upper film is separable from the lower film, 
 wherein the surface of the lower film has a non-adhered annular region that is underlying the upper film but is not adhered to the upper film at any portion of the non-adhered annular region, the non-adhered annular region being inside the circumferential edge portion and surrounding the perforation lines. 
 
 
     
     
       8. The packaging container according to  claim 1 , wherein the adhesion region for the sealing lid includes an annular region that surrounds the perforation lines. 
     
     
       9. The packaging container according to  claim 8 , wherein
 the annular region includes an increased width portion in which a width is partially greater than another portion, and 
 the upper film has an air slit that passes through an inner circumferential edge portion of the increased width portion. 
 
     
     
       10. The packaging container according to  claim 8 , wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the perforation lines, and a plurality of circular regions that are on the perforation lines inside an inner diameter of the funnel component and that are point-symmetric with respect to the center meeting portion of the perforation lines. 
     
     
       11. The packaging container according to  claim 8 , wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the perforation lines, and one region formed on each perforation line inside an inner diameter of the funnel component and one region formed on each perforation line outside the inner diameter of the funnel component, such that the regions formed on each perforation line inside and outside the inner diameter of the funnel component are point-symmetric with respect to the center meeting portion of the perforation lines. 
     
     
       12. The packaging container according to  claim 8 , wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the perforation lines, and two regions formed on each perforation line inside an inner diameter of the funnel component and one region formed on each perforation line outside the inner diameter of the funnel component, such that the regions formed on each perforation line inside and outside the inner diameter of the funnel component are point-symmetric with respect to the center meeting portion of the perforation lines. 
     
     
       13. The packaging container according to  claim 1 , wherein
 the sealing lid further includes a tab that extends from a portion of the circumferential edge portion, and 
 the upper film and the lower film are adhered to each other in a first part of the tab including a tip thereof, and the lower film is cut across the tab in a second part of the tab other than the first part. 
 
     
     
       14. The packaging container according to  claim 13 , wherein the tab is welded to the side wall of the container body. 
     
     
       15. The packaging container according to  claim 1 , wherein
 the upper film includes a laminated structure having a barrier film and an easy peel member, and 
 the lower film includes a laminated structure having a polyethylene terephthalate layer and a polyethylene layer. 
 
     
     
       16. The packaging container according to  claim 15 , wherein the sealing lid is pressed along an outer edge of the opening portion of the container body and welded to the opening portion. 
     
     
       17. The packaging container according to  claim 16 , wherein the sealing lid includes a region in which the upper film and the lower film are not welded to each other, in a portion outward of a region where the sealing lid and the opening portion of the container body are welded to each other. 
     
     
       18. The packaging container according to  claim 1 , wherein
 a rigidity of the side wall is higher than a rigidity of the bottom portion, and 
 a plurality of ruled lines are provided on an outer surface portion of the bottom portion so as to radially extend as viewed from a center portion of the bottom portion. 
 
     
     
       19. The packaging container according to  claim 18 , wherein the bottom portion projects outward of the packaging container. 
     
     
       20. The packaging container according to  claim 18 , wherein
 an outer edge portion of the bottom portion and a lower end portion of the side wall 
 overlap each other in a state where the lower end portion of the side wall is folded back inward to sandwich the outer edge portion of the bottom portion, and 
 includes a non-sealed portion that is formed such that a portion, of an overlapping region, which is higher than a predetermined height is not sealed in a state where a portion, of the overlapping region, ranging from a folding-back position to the predetermined height is sealed. 
 
     
     
       21. The packaging container according to  claim 18 , wherein the ruled lines are equally spaced from each other. 
     
     
       22. The packaging container according to  claim 1 , further comprising a sticker label having, in a part of a circumferential edge portion, a plurality of recesses each formed in a curved line in a planer shape, and
 the sticker label is adhered to a surface of the sealing lid, which forms an outer side of the packaging container. 
 
     
     
       23. The packaging container according to  claim 7 , wherein the adhesion region for the sealing lid includes a second annular region that surrounds the perforation lines. 
     
     
       24. The packaging container according to  claim 23 , wherein
 the second annular region includes an increased width portion in which a width is partially greater than another portion, and 
 the upper film has an air slit that passes through an inner circumferential edge portion of the increased width portion. 
 
     
     
       25. The packaging container according to  claim 23 , wherein the adhesion region for the sealing lid further includes a circular region that has, as a center thereof, the center meeting portion of the perforation lines, and a plurality of circular regions that are on the perforation lines inside an inner diameter of the funnel component and that are point-symmetric with respect to the center meeting portion of the perforation lines.